Bump ABI version 5.3.0 -> 5.3.1 according to doc/HACKING.md

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

Author: troglobit

src/Makefile.am

@@ -2,7 +2,7 @@ lib_LTLIBRARIES       = libite.la
 
 libite_la_CPPFLAGS    = -D_GNU_SOURCE
 libite_la_CFLAGS      = -W -Wall -Wextra
-libite_la_LDFLAGS     = $(AM_LDFLAGS) -version-info 8:0:3
+libite_la_LDFLAGS     = $(AM_LDFLAGS) -version-info 8:1:3
 libite_la_SOURCES     = chomp.c		copyfile.c			\
 			conio.c		conio.h		dir.c		\
 			erasef.c	fopenf.c	fremove.c	\